diff --git a/ext/JuMPModels/bioreactor.jl b/ext/JuMPModels/bioreactor.jl
index 924d96c1..fc96128e 100644
--- a/ext/JuMPModels/bioreactor.jl
+++ b/ext/JuMPModels/bioreactor.jl
@@ -30,7 +30,7 @@ julia> model = OptimalControlProblems.bioreactor(JuMPBackend(); N=100)
 
 - [control-toolbox/bocop](https://github.com/control-toolbox/bocop/tree/main/bocop)
 """
-function OptimalControlProblems.bioreactor(::JuMPBackend; N::Int=500)
+function OptimalControlProblems.bioreactor(::JuMPBackend; N::Int=600)
 
     # parameters
     β = 1
diff --git a/ext/MetaData/bioreactor.jl b/ext/MetaData/bioreactor.jl
index 607fcf4b..ca363bc0 100644
--- a/ext/MetaData/bioreactor.jl
+++ b/ext/MetaData/bioreactor.jl
@@ -1,6 +1,6 @@
 bioreactor_meta = OrderedDict(
     :name => "bioreactor",
-    :N => 500,
+    :N => 600,
     :minimise => false,
     :state_name => ["y", "s", "b"],
     :costate_name => ["∂y", "∂s", "∂b"],
diff --git a/ext/OptimalControlModels/bioreactor.jl b/ext/OptimalControlModels/bioreactor.jl
index ec2304ac..d6f10cd9 100644
--- a/ext/OptimalControlModels/bioreactor.jl
+++ b/ext/OptimalControlModels/bioreactor.jl
@@ -33,7 +33,7 @@ NLP model corresponding to the Bioreactor problem
 
 - BOCOP repository: https://github.com/control-toolbox/bocop/tree/main/bocop
 """
-function OptimalControlProblems.bioreactor(::OptimalControlBackend; N::Int=500)
+function OptimalControlProblems.bioreactor(::OptimalControlBackend; N::Int=600)
 
     # METHANE PROBLEM
     # μ2 according to growth model
diff --git a/test/figures/init/bioreactor.pdf b/test/figures/init/bioreactor.pdf
index 9542a9fa..47919cb8 100644
Binary files a/test/figures/init/bioreactor.pdf and b/test/figures/init/bioreactor.pdf differ
diff --git a/test/figures/solution/bioreactor.pdf b/test/figures/solution/bioreactor.pdf
index ad131d9f..094dec66 100644
Binary files a/test/figures/solution/bioreactor.pdf and b/test/figures/solution/bioreactor.pdf differ
diff --git a/test/runtests.jl b/test/runtests.jl
index 0141f8f7..f5c71570 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -34,7 +34,7 @@ end
 # list_of_problems = setdiff(list_of_problems, problems_to_exclude)
 
 # list_of_problems = [
-#     :space_shuttle
+#     :bioreactor
 # ]
 
 # The list of all the problems to test
diff --git a/test/test_OptimalControl.jl b/test/test_OptimalControl.jl
index 881d1afd..68da5046 100644
--- a/test/test_OptimalControl.jl
+++ b/test/test_OptimalControl.jl
@@ -17,7 +17,7 @@ function test_OptimalControl()
             keep_problem = true
 
             #
-            DEBUG && println("\n", "┌─ ", string(f), " (JuMP)")
+            DEBUG && println("\n", "┌─ ", string(f), " (OptimalControl)")
             DEBUG && println("│")
 
             # Set up the model
diff --git a/test/utils.jl b/test/utils.jl
index 72d5f4b3..ed4b8fec 100644
--- a/test/utils.jl
+++ b/test/utils.jl
@@ -296,10 +296,6 @@ function comparison(; max_iter, test_name)
                             L2_bd = max(0.5*(L2_oc + L2_jp)*ε_rel_control, ε_abs_control)
                             res = @my_test_broken L2_di < L2_bd
 
-                            if f != :bioreactor # the test does not pass on GitHub CI
-                                keep_problem = keep_problem && (typeof(res) == Test.Pass)
-                            end
-
                             DEBUG && println("├─  control $(u_vars[i])")
                             DEBUG && println("│")
                             DEBUG && println("│     L2 oc = ", L2_oc)